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Chevy Venture overheating problem

178 messages,  Last post on Feb 12, 2013 at 10:47 AM

You are in the Chevy Venture Forum.

What is this discussion about? Chevrolet Venture, Engine, Van

Messages Page 11 of 18

#99 of 178 2003 Chevy venture... by pat_carithers

Sep 02, 2009 (8:46 pm)

Okay, my problems started when the overflow pipe (near water pump) ruptured! Yes, I purchased this van used 4 years ago. Someone pounded on the pipe, changing the serpentine belt...obviously, not much of a mechanic. Then, someone put the wrong coolant into the system. We were not using DEX; someone topped it off without checking the system or asking questions. The mixture clogged the radiator something fierce... So, we had it pressure-tested and replaced. We also changed the radiator cap, water pump, thermostat, temperature sensor, hoses, and clamps. There is no coolant in the oil. My dad, a diesel mechanic checked the manifold gaskets and pronounced them fine. But, the coolant goes into the reservoir and does not drain back into the radiator without bleeding the system first AND loosening the radiator cap.
 
I love this vehicle. I had an accident with my Cavalier and I cannot drive another car. Yes, I was the only one injured and it took almost a year to recover...so, I really need to get this thing fixed! Help!

#100 of 178 02 chevy venture overheating by kyjeffry3

Sep 05, 2009 (5:31 pm)

ok i am sick single mom 3 kids and have spent all i can i had my van for 8 mo. no problem then it just overheated out of no where... dex cool nightmare flushed twice then was told bad water pump and thermostat lasted a day then overheated after 2 miles was told intake valve leak new gaskets thermostat agin all new hoses new serpentine belt .. new radiator cap. $1700.00 later i picked my car up lasted 2 weeks and i broke doqn 125 miles away from home again new thermostat new hoses plus the tow.. i want to cry... head gasket test fine sits at an idle ok put it in drive go 2 miles and the temp is in the red the water is boiling/bubbling fans are on and yes i turned that little thing and released the air by the water pump... hose going to the motor on the right is as hot as heck and i know a little about cars but i am sooo lost with this ... help mom of three on a bike!!!

#101 of 178 Re: 02 chevy venture overheating [kyjeffry3] by AJGWHEELS

Sep 05, 2009 (6:26 pm)

Replying to: kyjeffry3 (Sep 05, 2009 5:31 pm)
hi MOM of three :
                            this is what I did to repair my VENTURE Overheating problem,
      first I change the WATER PUMP , they have a new IMPROVED WATER PUMP design with the propellers a little bigger and in metal , the PLENUM intake & EXHAUST gaskets ( comes in a kit ) , replace 2 short hoses located around the OIL FILTER , and finally get a NEW RADIATOR , and that will take care of the problem . Im using one gallon of DEX COOL COOLANT (as specified by manufacturer ) and two gallons of DISTILLED WATER , not regular water cause it contains clorox and could damage engine cause its made of aluminum . Since you havent mentioned replacing the RADIATOR , I think it should be considered to do so . let me know so I can help you out . ALBERT JULIAN

#102 of 178 OVERHEATING issues on 02 Chevy venture by jbranson

Oct 06, 2009 (12:55 pm)

Ok so i have read ALOT about this problem on the Chevy venture! PLEASE HELP! We just bought this van and it was running fine! I change the fluids in the van after we get it it started to run HOT! I have air bubbles in it! Took to radiator shop and had it flushed. still running hot I had it pressured checked and that came back normal. So i change the water pump and thermostat. Now the check engine light is on (Code p0122) and still runs hot. it goes past the 1/2 toward hot then will come back down then go up. Someone said that it could be the Dash??? Please help Thank you!

#103 of 178 Re: overheating [gmz1] by jbranson

Oct 06, 2009 (1:04 pm)

Replying to: gmz1 (Apr 16, 2009 6:34 pm)
Was you loosing water? We have not lost any? So i am not sure what our problem is we have replaced the water pump thermostat rad cap and had it pressured tested. any ideas ?

#104 of 178 Re: overheating [jbranson] by k00l4id

Oct 06, 2009 (1:35 pm)

Replying to: jbranson (Oct 06, 2009 1:04 pm)
I would suggest doing a pressure test on the cooling system. In the 2002 models there was a changeup for the head gasket and that might be whats causing you to run hot without noticing a leak on the outside of the heads or block. I had the same problem in my 04, i changed the thermostat and flushed the whole system.

#105 of 178 Re: overheating [k00l4id] by jbranson

Oct 06, 2009 (3:01 pm)

Replying to: k00l4id (Oct 06, 2009 1:35 pm)
so the 02 head gaskets are "bad" and i may need to change them? we have changed the thermostat and flushed the whole system as well as new water pump.

#106 of 178 Re: OVERHEATING issues on 02 Chevy venture [jbranson] by davy2

Oct 07, 2009 (3:08 am)

Replying to: jbranson (Oct 06, 2009 12:55 pm)
Simple check. The next time you are out and the temp gauge starts to climb, turn on your A/C and see if it goes down. There are two relays in the fuse box which control the cooling fans. While driving at slow speeds they might not be activated, but the A/C over rides them and turns them on.... I have replaced mine twice already...

#107 of 178 FANS by jbranson

Oct 07, 2009 (8:26 pm)

my temp gauge goes to 3/4 before the fans come on???? I have replaced the Temp switch, the Thermostat, and water pump. Have had it pressure checked they said it was getting to 195 degrees they said thats normal. PLEASE HELP!!
 

#108 of 178 Temp Gauge by jbranson

Oct 09, 2009 (6:52 am)

OK my van is really having some issues!
 
we have changed the water pump, thermostat, had radior flushed, pressure checked, thought we had a air pocket so we had it vacuumed then Dye in the system to check for a blown head gasket. Can someone please tell me what else could it be?? HELP!!!

Messages Page 11 of 18

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